In the name of Providence, which implants in the seed the future of the tree and in the hearts of men [and women] the longing for people living in [human] love; in the name of the highest. in whom we move and who makes the mother [and father]*, the brother and sister* what they are; in the name of sages and great religious leaders, who sacrificed their lives to hasten the coming of [peace and justice]—let us renew our resolution—sincerely to be real brothers and sisters* regardless of any kind of bar which estranges [one from another]. In this holy resolution may we be strengthened, knowing that we are God's family, that one spirit, the spirit of love, unites us, and [may we] endeavor for a more perfect and more joyful life. Amen.
Čapek was writing in the language of his time, which includes gender binary terms. In the spirit of inclusivity, you are invited to substitute "parents" or "ancestors" and "siblings" or "family."